This review summarizes the present situation of research, development and application of the Chinese herbal feed additives and its prospect. It can provide scientific references for researchers to carry out in-depth study. Chinese herbal feed additives will hopefully solve problems such as antibiotic residues, environmental pollu-tion, low productivity which hinders the development of livestock and provides strong support for developing green husbandry, meeting the food safety demand, closing the gap of livestock between the developed countries and Chi-na, increasing competitiveness of Chinese animal products in world markets. The development of Chinese herbal feed additives have very important economic and social benefits.

Objective To explore the diagnostic value of multiplanar reconstruction(MPR)of spiral CT in the disorders of lumbar intervertebral discs.Methods Fourty-one cases with the disorders of lumbar intervertebral discs were examined with conventional CT scans and MPR of spiral CT.CT findings of intervertebral discs at L 3/4 ,L 4/5 and L 5/S 1 were compared and observed.Results The conventional scans showed bulging and /or herniation of intervertebral discs in 35 cases,and normal in 6 cases which compression of nerveroots by intervertebral discs or osseous narrow of intervertebral discs were showed on MPR.The MPR showed compression of nerve roots,compression of dural sac or osseous narrow of intervertebral foramens in 36 cases.Conclusion MPR possesses important value in diagnosing the disorders of lumbar intervertebral discs,showing the causes of lumbar vertebral diseases and distinguishing the various diseases of lumbar vertebrae.

Objective To explore the significance of calcification in diagnosis of thyroid mass , and to improve the differential diagnosis of benign and malignant thyroid nodules .Methods 286 cases with thyroid masses admitted to the hospital from Jan .2008 to Dec.2012 underwent preoperative ultrasound scan .The clinical data were retrospectively analyzed from patients with or without calcification , the characteristics of different calci-fication and the comparison between preoperative diagnosis and postoperative pathological results .Results Ultra-sound and pathological analysis showed there was significant difference between calcification group and non -calci-fication group in detection rate of thyroid cancer (66.98%vs 13.51%, P<0.05).Detection rate of thyroid car-cinoma was significantly higher in microcalcification group than in coarse calcification group ( 84.42% vs 20.69%,P<0.05) .There was significant difference in detection rate of benign and malignant nodules in the two types of calcification group(P<0.05).The detection rate was higher in the malignant nodules than in the benign nodules .The detection rate of thyroid cancer had no statistical significance in non-calcification group and coarse calcification group ( P>0.05 ) .Conclusion Thyroid calcification , especially microcalcification has important significance in diagnosis of thyroid cancer .

Accidents, Occupational ; Adult ; Female ; Humans ; Male ; Nitrogen Mustard Compounds ; poisoning ; Occupational Exposure ; adverse effects

Objective To investigate the resistance rate of Helicobacter pylori (Hp) to clarithromycin and its correlation with point mutations in 23S rRNA gene. Methods Hp was cultured from gastric biopsy specimen obtained from 189 patients undergoing upper gastrointestinal endoscopy. The DNA of 11 clarithromycin sensitive Hp and 19 clarithromycin resistant Hp was extracted, and 23S rRNA was amplified and sequenced. Results The rate of clarithromycin resistance in cultured Hp was 29. 2%. Point mutations in 23S rRNA gene were found in 17 clarithromycin resistant Hp strains. The proportion of A to G mutation was 36.8%, G to A of 21.5%, C to T of 15.8%, A to C of 10.5% and T to C of 5.3%. No point mutation in 23S rRNA was detected in other 2 clarithromycin resistant and 11 sensitive Hp strains. Conclusion The resistance to clarithromycin is common in Hp, and point mutations in 23S rRNA gene of Hp are frequent in clarithromycin resistant strains, with most prevalent mutations of A to G and next G to A.

Angelica ; chemistry ; Animals ; Animals, Newborn ; Cell Count ; Female ; Fetal Hypoxia ; pathology ; Hippocampus ; cytology ; drug effects ; Male ; Neuroglia ; cytology ; Neurons ; cytology ; Pregnancy ; Rats ; Rats, Sprague-Dawley

Objective: To develop a grinding intrument for removing the remaining bonding material and polishing the dental enamel after orthodontic treatment. Methods: A dental griding instrument was made based on ultrasonic principle with the frequency of 25～45 kHz. 60 premolars extracted for orthodontic purpose were used in the experiment, before treatment the surface roughness was measured and recorded as Ra 1. Brackets were adhered to the premolars, and then debonded. The surface enamel of 30 teeth were polished by the ultrasonic grinding instrument (group of GI), that of another 30 by conventional technique(group of CT) , the roughness was measured and recorded as Ra 2. Results: In group GI Ra 1 and Ra 2 were 0.846 6?0.428 2 and 0.740 5?0.372 1(P0.05), respectively. After treatment Ra 2 in group GI was smaller than that in group CT(P

Objective To evaluate the value of MR-guided neurolytic celiac plexus block(NCPB)for treatment of upper abdominal cancer pain.Methods 13 neurolytic celiac plexus blocks were carried out in 12 patients with severe upper abdominal pain caused by malignant tumors.The pain-relieving effect of the block was both evaluated using visual analogue scale(VAS) and analyzed statistically in all cases.Results The placement of the needle MR-guided was easy and accurate,the successful rate of the puncture was 92%.There were no severe complications.The pain before and after the procedure had obvious difference and the pain relief could last for a long time.Conclusion MR-guided NCPB is a simple and effective technique for treatment of upper abdominal cancer pain.

Objective To explore relationship between the changes of mononuclear cells (MNCS) apoptosis and the levels of inflammatory cytokines and adhesion molecules in patients with systemic lupus erythematosus(SLE). Methods The apoptotic rates of MNCS in 32 patients with SLE and 10 healthy subjects were detected with flow cytometry, and the plasma levels of inflammatory cytokines(IL-8, IL-6,TNF-? and NO) and adhesion molecules(P-Sel, ICAM-1) were assayed with ELISA. Results The percentage of MNCS apoptosis in the patients with active stage of SLE was obviously higher than that in healthy subjects and patients with remission stage of SLE, and there was no significant difference in the percentage of MNCS apoptosis between healthy subjects and patients with remission stage of SLE. The levels of plasma IL-8, TNF-?, IL-6, NO, P-sel and ICAM-1 in patients with active stage of SLE were significantly higher than those in healthy subjects and the patients with remission stage of SLE, and were positively correlated with the percentage of MNCS apoptosis and the severity of SLE.There was no significant difference in the levels of plasma inflammatory cytokines and adhesion molecules between patients with remission stage of SLE and healthy subjects. Conclusion The apoptotic rate of MNCS increased in the patients with active SLE, and was closely associated with the severity and efficacy of SLE. The high expressions of inflammatory cytokines and adhesion molecules may be the reason of MNCS apoptotic increase. Appropriately regulating the expression of cytokines and adhesion molecules, and moderately controlling the apoptosis of MNCS may improve the prognosis of SLE.

AIM: To evaluate posterior capsular opacification (PCO) with hydrophobic acrylic intraocular lens (IOL, Sensar AR40e) and silicone IOLs after cataract surgery, to use a software program developed to provide an objective assessment of the amount of PCO in the digital images of the posterior capsule to quantify PCO. METHODS: Ninety-eight eyes underwent standardized phacoemulsification and "in the bag" IOL placement, were randomized to receive a three piece lens of hydrophobic acrylic or silicone, but lens materials were different in one case. In year 1 and 2, digitized retro-illumination images were taken from the posterior capsule. Images were analyzed by POCO software program, removing the Purkinje light reflexes, contrast enhancement, filtering to enhance low-density PCO. RESULTS: The percentage of PCO were 0.32±0.13 of hydrophobic acrylic IOLs in year 1, compared with 0.39±0.17 of silicone (P=0.37). In year 2, the percentage of PCO were 0.42±0.20 with hydrophobic acrylic IOLs and 0.34±0.18 with silicone IOLs (P=0.50). Of those patients with PCO in year 1 and 2, severity grades were 0.50±0.30 and 0.82±0.58 of hydrophobic acrylic cases, compared with 0.63±0.35 and 0.55±0.35 of patients with silicone IOLs (P=0.52,P=0.69) with no statistical significance.CONCLUSION: The POCO system is capable of producing an objective and repeatable measure of PCO that is relevant to assessing techniques of PCO prevention.